AUSTIN — Former Dallas County sheriff Lupe Valdez out-raised Houston businessman Andrew White heading into early voting in their gubernatorial runoff but he still has considerably more in his coffers, according to campaign finance reports filed with the Texas Ethics Commission.

Valdez’s campaign said Tuesday she raised $208,000 from Feb. 25 - just ahead of the March 6 primary - through last Friday. White raised $178,936 during that same period.

The amount raised by Valdez is lower than the $290,655 she initially listed on a report filed with the Texas Ethics Comission. Administrative errors that led to the discrepancy were caught after the report was filed, said Kiefer O’Dell of Valdez’s campaign. He said she was filing an amended report.

Early voting started Monday for the May 22 runoff, in which Valdez and White are competing for the Democratic nomination to challenge Republican Gov. Greg Abbott in November.

The campaign finance reports showed that White maintained more cash on hand than Valdez, thanks to a $1 million loan he made to his campaign before the primary election. He reported having $980,943 after spending $166,309 in the last finance period.

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Valdez initally reported having $258,196 in cash on hand. But after correcting the administrative errors, O’Dell said, her actual cash on hand was $115,282.

The numbers are an indication of the uphill climb either Democrat will have against Abbott, who at last count had more than $41 million in cash on hand. A Democrat hasn’t won a statewide election in Texas in nearly a quarter of a century.

“While competing against Gov. Abbott’s record will be easy, the harsh reality is the Democratic nominee will have to also compete against his war chest. If nominated on May 22nd, this election will be a true ‘David v. Goliath’ fight, and we’re picking out a smooth stone,” White said in a statement. “I am so thankful to our supporters and I’m humbled to have earned their trust. Right now, we’re sprinting toward the finish line.”

Valdez’s campaign didn’t immediately respond to a request for comment.